C31231211113313121211113313331323133313331333132322121111113313232233121   >>    C3123121111331312121111331333132313331333133313232212111111331323223312   <<    C31231211113313121211113313331323133313331333132322121111113313232233123   >>      C31231211113313121211113313331323133313331333132322121111113313232233122   >>